Novel homologous lactate transporter improves l-lactic acid production from glycerol in recombinant strains of Pichia pastoris

Table 3 Kinetic parameters during fed-batch experiments at limited aerobic phase

Strain	Y_x/s	Y_lac/s	Y_ac/s	Y_ara/s	q_x	q_lac	q_ac	q_ara	r_x	r_lac	r_ac	r_ara
XL	0.180 ± 0.004	0.460 ± 0.004	0.008 ± 0.001	0.000 ± 0.000	0.020 ± 0.004	0.053 ± 0.012	0.001 ± 0.000	0.000 ± 0.000	0.117 ± 0.025	0.348 ± 0.073	0.006 ± 0.001	0.000 ± 0.000
GLJ	0.177 ± 0.004	0.470 ± 0.035	0.010 ± 0.005	0.000 ± 0.000	0.024 ± 0.003	0.063 ± 0.003	0.001 ± 0.000	0.000 ± 0.000	0.160 ± 0.054	0.413 ± 0.101	0.001 ± 0.004	0.000 ± 0.004
GLS	0.066 ± 0.004	0.673 ± 0.033	0.004 ± 0.002	0.001 ± 0.001	0.014 ± 0.002	0.146 ± 0.016	0.001 ± 0.000	0.000 ± 0.000	0.065 ± 0.005	0.673 ± 0.041	0.003 ± 0.001	0.001 ± 0.000

Y yield, s substrate, x biomass, lac lactate, ac acetate, ara arabitol, Y g/g, q g/g/h, r g/L/h

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